发明名称 |
System and method for the generation of multiple angle correlation-based digital watermarks |
摘要 |
Disclosed are systems and methods directed to the generation of digitally watermarked grayscale images having a watermark embedded at different arbitrary Rotation Angles. A single public key can be used to retrieve the otherwise invisible watermarks from the watermarked images when overlaid atop the images at Orientation Angles corresponding to the Rotation Angles.
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申请公布号 |
US7894626(B2) |
申请公布日期 |
2011.02.22 |
申请号 |
US20070848908 |
申请日期 |
2007.08.31 |
申请人 |
XEROX CORPORATION |
发明人 |
WANG SHEN-GE;ROLLESTON ROBERT J. |
分类号 |
G06K9/00 |
主分类号 |
G06K9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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